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Finding the Fourth Proportional to 186,690,615.60, 280,035,923.40 and 161,160,452.40

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Solution

The fourth proportional to 186,690,615.60, 280,035,923.40 and 161,160,452.40 is: 241,740,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,690,615.60 : 280,035,923.40 = 161,160,452.40 : x
  2. Step 2: Convert to fraction form
    186,690,615.60/280,035,923.40 = 161,160,452.40/x
  3. Step 3: Cross multiply
    186,690,615.60x = 280,035,923.40 × 161,160,452.40
  4. Step 4: Simplify right side
    186,690,615.60x = 45,130,716,103,395,744
  5. Step 5: Solve for x
    x = 45,130,716,103,395,744/186,690,615.60
  6. Step 6: Final answer
    x = 241,740,678.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.